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发明名称
Perfectionnements aux machines à tirefonner
摘要
申请公布号
FR1012995(A)
申请公布日期
1952.07.21
申请号
FRD1012995
申请日期
1950.02.17
申请人
发明人
GAUTRUCHE GASTON-XAVIER
分类号
E01B29/28
主分类号
E01B29/28
代理机构
代理人
主权项
地址
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